| The osmolality of all prepared solutions was measured with an osmometer. |
| To obtain a direct measurement of the osmolality, 50 randomly selected samples were analyzed with an osmometer. |
| Specimens stored unpreserved at ambient temperature yielded unacceptable standard deviations for pH, ammonia, creatinine, and osmolality. |
| This patient had low urinary osmolality and a low sodium concentration, which is inconsistent with SIADH and hypovolemic hyponatremia. |
| Otherwise frequent monitoring of lithium, creatinine and electrolyte levels and urine osmolality should be done. |
| The infusion should be diluted to reduce the osmolality, even if an increase in infusion rate is necessary. |
